package ts.ms;

import java.util.ArrayList;

/**
 * @author HeXiangGuang
 * @create 2021-12-23 22:04
 */
public class Demo {
    public static void main(String[] args) {
        String str = null;
        System.out.println(str);
        //
        //
        //
        //
        ArrayList<Object> objects = new ArrayList<Object>();
        System.out.println("测试");
        System.out.println("测试2");
        System.out.println("测试3");
        System.out.println("测4");
    }
}
